Building Services & Commissioning Specialists

Plug Fan Upgrades

Building services

1 July 2026

Upgrading ventilation fans to improve efficiency, reliability and system performance at a London site.

Client

Classified

Location

London, UK

Sector

Building services

The brief

Chillax Engineering completed a series of plug fan upgrades for a client’s ventilation system in London.

Fans provide the airflow needed to move air through a ventilation system, serving occupied spaces and overcoming resistance from components such as filters, coils and ductwork. Their performance therefore affects both ventilation delivery and the energy required to operate the system.

The project focused on improving efficiency, reliability and overall performance through targeted fan upgrades. The installation also needed to be delivered safely and professionally within the agreed schedule.

What we did

Our engineers completed a series of plug fan upgrades within the client’s ventilation system, updating key components responsible for moving air through the equipment.

Improving ventilation efficiency
The upgrades supported more efficient fan operation. Fan selection matters because a ventilation system needs sufficient airflow to meet the building’s requirements while managing electricity consumption. An effective upgrade considers how the fan performs within the system it serves.

Supporting reliable performance
The work addressed the fan assemblies that the ventilation system relies on to deliver airflow. Improving the reliability of these components helps support consistent system operation and reduces the likelihood of disruption associated with fan faults.

Safe and coordinated installation
Our team completed the installation safely, professionally and on schedule, with careful attention to the quality of the work throughout.

The outcome

The completed plug fan upgrades delivered improved efficiency, reliability and performance for the client’s ventilation system.

More efficient fan operation can help reduce the electricity needed to provide the required airflow. The extent of any savings depends on factors including operating hours, airflow demand, system resistance and control settings.

The project demonstrates how targeted upgrades can improve an existing HVAC system. By focusing on the components that drive airflow, Chillax Engineering helped the client strengthen ventilation performance and make more efficient use of energy.

More case studies

Explore more projects to see how Chillax Engineering helps clients maintain and improve their HVAC systems through repairs, upgrades and commissioning.

Data centre cooling

Humidifier Sump Replacement

Replacing a leaking humidifier sump to address water loss and support reliable humidity control.

Read case study  →

Building services

Thermal Wheel Upgrade

Upgrading a thermal wheel to support more efficient heat recovery and ventilation.

Read case study  →

Air conditioning

Compressor Replacement

Replacing a defective compressor to support fresh air conditioning for function rooms near Trafalgar Square.

Read case study  →

Talk to our team about your HVAC, refrigeration and commissioning needs

Our experienced engineers provide specialist advice and technical support for HVAC, refrigeration and commissioning projects across the UK and Europe.

Secret Link